The Probability Of A God Is "Undefined"

It is easy to find religious apologists, and even a physicist, positing "evidence" showing that there probably is a god.  These attempts usually use some sort of mathematical calculation, like a variation of the Drake Equation or Baysian Analysis for example.  However,  all of these attempts ignore the fact that there is no evidence for any god.  Therefore, the denominator in the calculations is zero (0).  Whenever a number is divided by zero, the results are "undefined."   In other words, the results have no meaning.